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1. CN112204975 - TIMESTAMP AND METADATA PROCESSING FOR VIDEO COMPRESSION IN AUTONOMOUS DRIVING VEHICLES

Office
China
Application Number 201980002459.6
Application Date 29.04.2019
Publication Number 112204975
Publication Date 08.01.2021
Publication Kind A
IPC
H04N 19/17
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
17the unit being an image region, e.g. an object
CPC
H04N 19/172
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
17the unit being an image region, e.g. an object
172the region being a picture, frame or field
H04N 19/46
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
46Embedding additional information in the video signal during the compression process
Applicants BAIDU.COM TIMES TECHNOLOGY (BEIJING) CO., LTD.
百度时代网络技术(北京)有限公司
BAIDU USA LLC
百度(美国)有限责任公司
Inventors ZHANG MANJIANG
张满江
ZHOU SHENGJIN
周胜进
WANG SHUAI
王帅
GUO SHUANGCHENG
郭双城
Agents 北京英赛嘉华知识产权代理有限责任公司 11204
北京英赛嘉华知识产权代理有限责任公司 11204
Title
(EN) TIMESTAMP AND METADATA PROCESSING FOR VIDEO COMPRESSION IN AUTONOMOUS DRIVING VEHICLES
(ZH) 自动驾驶车辆中视频压缩的时间戳和元数据处理
Abstract
(EN) A method to perform video compression for ADV is disclosed. The method receives multiple frames of image data from multiple cameras. Metadata are appended to each frame of the image data to generate one of multiple frames of uncompressed image data as the image data are received. The frames of uncompressed image data may be stored. To compress the image data later, the method retrieves the framesof uncompressed image data, extracts the metadata from each frame of the uncompressed image data to generate one of multiple frames of processed image data. The method compresses each frame of the processed image data with the metadata extracted to generate one of multiple frames of compressed image data. The method reattaches the metadata to a corresponding frame of the compressed image data to generate one of multiple compressed image frames. The metadata supports time synchronization and error handling of the image data.
(ZH) 公开了执行用于ADV的视频压缩的方法。该方法从多个相机接收图像数据的多个帧。将元数据附加至图像数据的每个帧以在接收到图像数据时生成未压缩图像数据的多个帧中的一个。可存储未压缩图像数据的帧。为了稍后压缩图像数据,该方法获取未压缩图像数据的帧,从未压缩图像数据的每个帧中提取元数据以生成经处理图像数据的多个帧中的一个。该方法利用提取的元数据来压缩已处理图像数据的每个帧,以生成压缩图像数据的多个帧中的一个。该方法将元数据重新附加至压缩图像数据的相应帧以生成多个压缩图像帧中的一个。元数据支持图像数据的时间同步和错误处理。
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